Quik Case 6

D.D.of calcified intra thoracic lymph nodes:

Causes:

1-Granulomatous which could be due to infectious or noninfectious
Infectious due to TB or Histoplasmosis.
Noninfectious due to sarcoid.

2-Occupational lung disease as silicosis.

3-Treated lymphoma after radiotherapy or chemotherapy.

4-Metastases
 less common.

5-Amyloidosis: rare.

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